245216720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{313}}^1\times {\mathrm{1399}}^1$

素因数の和:1732

約数の個数: 80

約数和(自身を含む): 654124800

約数和(自身を除く): 408908080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 313, 560, 626, 1252, 1399, 1565, 2191, 2504, 2798, 3130, 4382, 5008, 5596, 6260, 6995, 8764, 9793, 10955, 11192, 12520, 13990, 17528, 19586, 21910, 22384, 25040, 27980, 35056, 39172, 43820, 48965, 55960, 78344, 87640, 97930, 111920, 156688, 175280, 195860, 391720, 437887, 783440, 875774, 1751548, 2189435, 3065209, 3503096, 4378870, 6130418, 7006192, 8757740, 12260836, 15326045, 17515480, 24521672, 30652090, 35030960, 49043344, 61304180, 122608360, 245216720]

約数ペア:

[(1, 245216720), (2, 122608360), (4, 61304180), (5, 49043344), (7, 35030960), (8, 30652090), (10, 24521672), (14, 17515480), (16, 15326045), (20, 12260836), (28, 8757740), (35, 7006192), (40, 6130418), (56, 4378870), (70, 3503096), (80, 3065209), (112, 2189435), (140, 1751548), (280, 875774), (313, 783440), (560, 437887), (626, 391720), (1252, 195860), (1399, 175280), (1565, 156688), (2191, 111920), (2504, 97930), (2798, 87640), (3130, 78344), (4382, 55960), (5008, 48965), (5596, 43820), (6260, 39172), (6995, 35056), (8764, 27980), (9793, 25040), (10955, 22384), (11192, 21910), (12520, 19586), (13990, 17528)]